DS96173 Datasheet, PDF (4/6 Pages) National Semiconductor (TI) – RS-485/RS-422 Quad Differential Line Receivers

Parameter Measurement Information (Continued)
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FIGURE 2. t_PHZ, t_PZH (Note 11)
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FIGURE 3. t_PZL, t_PLZ (Note 11)
Note 9: The input pulse is supplied by a generator having the following characteristics: PRR = 1.0 MHz, 50% duty cycle, t_r ≤ 6.0 ns, t_f ≤ 6.0 ns, Z_O = 50Ω.
Note 10: C_L includes probe and stray capacitance.
Note 11: DS96173 with active high and active low Enables is shown here. DS96175 has active high Enable only.
Note 12: All diodes are 1N916 or equivalent.
Note 13: To test the active low Enable E of DS96173, ground E and apply an inverted input waveform to E . DS96175 has active high Enable only.
Typical Application
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Note: The line length should be terminated at both ends in its characteristic impedance. Stub lengths off the main line should be kept as short as possible.
FIGURE 4.
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